$22 AT flops top pair but is check raised

[splashpot]

***** Hand History for Game 2765757508 *****
NL Texas Hold'em $20 Buy-in + $2 Entry Fee Trny:16017639 Level:3 Blinds(25/50) - Saturday, September 24, 03:02:16 EDT 2005
Table Table 13881 (Real Money)
Seat 2 is the button
Total number of players : 7
Seat 5: Translucity ( $980 )
Seat 7: Cardinals_05 ( $1025 )
Seat 4: royalmax ( $1490 )
Seat 2: keithlef ( $915 )
Seat 6: wctaylor ( $2400 )
Seat 9: CopyCat222 ( $630 )
Seat 10: Blkcatjr2 ( $560 )
Trny:16017639 Level:3
Blinds(25/50)
** Dealing down cards **
Dealt to Translucity [ Th As ]
wctaylor folds.
Cardinals_05 folds.
CopyCat222 calls [50].
Blkcatjr2 folds.
keithlef folds.
royalmax calls [25].
Translucity checks.
** Dealing Flop ** [ Tc, 3c, 9s ]
royalmax checks.
Translucity bets [150].
CopyCat222 calls [150].
royalmax raises [400].
Translucity?